How to restart a windows device from my windows 8.1 store app using c# code in visual studios?

Hi guys I am creating a windows 8.1 application using visual studios, c# and XAML. I was wondering if there is some c# code I could use that could restart the users windows device automatically whilst the app was running? So just to be clear the user would press a button in my application for example and their device would maybe prompt them then restart?